Coating-machine.



\ GOATING MAGHIITE.

APPLICATION FILED SEPT. 11, 1909.

Patented Augf30, 1910.

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. Beit known that I, Fnnonmcx' P. WOOD, a; subject of the King of Great Britain, re-

siding at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Coating-'Machincs, and declare'the followi'n to be a full,clear,

and' exact description lof'the same, such as I will'ei able othersa'skil'led' 'in the art to which it pertains'to make and use the same, refer? ence being had to 'the accompanying draw serting a layer of ings, ,which form a art of this speo'ification-. invention re ates tomachines jor' waterproof material, or similar protective layer between two spirally wound tubular members, the objectof 'theim vessel.

.veiit1on "beiiig'ftoiproduce atube or. vessel; which contains as a constituent partf'thereoff a layer offprotectiwe materialthat isitself;

separate from and protected from the con-f tents'of the vessel, 'he vessel 'is made as a continuous double tube afterward cut in sections and fitted with end closures, and the device, which is the object of this inventiomis intended to place bet-ween the two tubes, of which the walls of this vessel are made, a layer ofro'tective material. Usually the protective ayer'is ofwaterproof compound, but, it may 80:

be a compound to prevent the escapeof'any character of material placed inside the In the drawings :--Figure 1, is a side ele vation; F g. 2,-1 sa reverse side elevatfon.

Fig. 3, is a cross-section;

1 indicates the mandrel of an" ordinary tube winding machine of the character employed to wmd'what 'is'known as spirally wound tubes, .Upon this are run the strips f;- of a spiral tube, and at a distance along; the mandrel are run the strips 7zih to form anothertube or another layer u on the first tube, usin the first tube as a ase for the second an construct what'wou be a four-ply tube in-. stead of atwo-ply tube or two tubes, one constructed inside of the other. Between the two sets of strips f 7 and h'- h is located a base 4, upon which there is mounted a tank 2, above which and onthe casing thereof is journaled a coating roller 3; thetanli 2 carrying the coating 'roller is adjustable across the base ibyineans. of an adjusting Specification of Letters Patent. Application filed September 11, i909. Serial Kc. 517,235.

the double tube.

windin both sets of stri s U)? ii p Patented Aug. 30,1910.

screw 5 to bringv the roll'of the coating may chine to its proper relation to the mandreljjfifi .The coating roll 3 is so located that the uper run 0 its periphery will contact the ower run of the tube that is making, if the tank upon which the roll is, carried be thrown over to produce that result or it 6t) may be drawn away as much as maytbe'des red. The adjustment is especiallyrequired because the material used in constructing the tubes varies in thickness. Toward thefeed lend ofthe mandrel the shaft of the roll-3 is 3 extended and provided with a driving wheel "6}that is slightly greater in diameter than Qthe coating roll 3; the driving wheel presses against the tube that is making with a pressure sufii'cient to rota-tethe coating roll,"al

though'the coating roll "itself may be spaced from'the coated tube to such an extent that {it would not be driven withoutthe driving :wheel. necessar T when the coating to be applied is v7t;

Such an adjustment is sometimesquite thick :and it is desired to have a'thick layer of it applied intermediate the walls of The cellular or soft character of the material of which such tubes are usually made renders it possible to have a considerable range of adjustment and still retain the driving wheel 6 in=driving contact with the tube that is making. The lower run of the coating roll dipsin the .tank 2 and applies a coating of protective material 86 to the tube, which is immediately covered in by the second layer of material fiP-lt; the

protective'material is time itself inclosed be;

tween the two layers of the tube, which, with the protective 'coatin" form the finished tube 90 and the side walls oi the finished vessel. A scraper 7, preferably a stifi brush, removes superfluous material.

What I claim is I 1. In combination with the mandrel of a tube-forming machine adapted to be rotated, a coating roll-adjustable with respect to said mandrel, a tank adjustable withsaid roll, a driving wheel on said roll adapt-- ed to contact the.tube making on said mandrel, and thereby drive said roll, substantially as described.

2. In combination with the mandrel of a tube-forming machine adapted for the making of a double-walled tu'be thereon, each wallconsisting of a plurality of spirally Wound strips, a tank adapted to hold a In testimony whereof, I sign this specificoatinglcompnund, a coating roller mounted 1' cntinn in the presence of two Witnesses to revo Va above and, artialiv in said tank i r means for adjusting tiie r011 Zvith respect to IREDLRICIX the mandrel, and means for driving the roii -Witnesses:

inflependently of its own frictional cantact VIRGINIA C. SPRATT, wih the mandrei,substantially as described. CHARLES 0. JENNINGS. 

